life Process

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Questions and Answers

What is the common evidence for being alive according to the passage?

  • Infecting cells
  • Visible movement (correct)
  • Color
  • Breathing

Why is there controversy about whether viruses are truly alive or not?

  • They infect cells
  • They do not show any molecular movement (correct)
  • They have visible movement
  • They grow over time

What characteristic of plants is mentioned in the passage as a way to know they are alive?

  • Visible movement
  • Eating food
  • Infecting cells
  • Leaves of colors other than green (correct)

Why is using visible movement as the defining characteristic of life not enough?

<p>Some animals can breathe without visible movement (A)</p> Signup and view all the answers

According to professional biologists, why is there a controversy about whether viruses are truly alive or not?

<p>Viruses do not show any molecular movement (C)</p> Signup and view all the answers

In biological classification, what is the rank of class in relation to phylum and order?

<p>Between phylum and order (D)</p> Signup and view all the answers

Who first introduced the distinct rank of class in biological classification?

<p>Joseph Pitton de Tournefort (B)</p> Signup and view all the answers

How is the composition of each class ultimately determined?

<p>By the subjective judgment of taxonomists (C)</p> Signup and view all the answers

Which of the following did Carl Linnaeus divide into classes in the first edition of his Systema Naturae?

<p>All three kingdoms of Nature (B)</p> Signup and view all the answers

What distinctive characteristic is historically conceived to be embraced by taxa in the class?

<p>'Level of complexity' measured in terms of how differentiated their organ systems are into distinct regions or sub-organs (C)</p> Signup and view all the answers

According to the passage, what is a contentious issue regarding viruses and their classification as living organisms?

<p>The controversy surrounding their molecular movement (A)</p> Signup and view all the answers

Based on the passage, why is the visible movement not considered a sufficient defining characteristic of life?

<p>Due to the invisible molecular movement necessary for life (D)</p> Signup and view all the answers

What is the primary reason for the controversy about whether viruses are truly alive or not?

<p>Their lack of visible movement until they infect some cell (D)</p> Signup and view all the answers

Why do professional biologists consider invisible molecular movement necessary for life?

<p>To differentiate between living and non-living organisms (B)</p> Signup and view all the answers

What characteristic of viruses contributes to the controversy about their classification as living or non-living?

<p>Their lack of visible movement (B)</p> Signup and view all the answers

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